Internet & Web Technology Questions with Answers

Q.1 Hardware that calculates CRC(Cyclic Redundancy Check) uses:    ?

(A)  Shift register  

(B)  Xor unit   

(C)  Both (A) & (B)  

(D)  Instruction register  

Ans: B   Hardware that calculates CRC uses shift register and Xor unit.  

Q.2 In TCP protocol header “checksum” is of___________    ?

(A)  8 bits  

(B)  16 bits   

(C)  32 bits  

(D)  64 bis  

Ans: B   In TCP protocol header checksum is of  16 bits.  

Q.3 In IP addressing scheme, class used for multicasting is:    ?

(A)  Class A  

(B)  Class B   

(C)  Class C  

(D)  Class D  

Ans: D   In IP addressing scheme, class used for multicasting is class D.    

Q.4 CIDR stands for  ?

(A) Classified Internet Domain Routing 

(B) Classless Inter Domain Routing 

(C) Classless Internet Domain Routing 

(D) Classified Inter Domain Routing  

Ans: B   CIDR stands for Classless Inter Domain Routing.

Q.5 The total number of class of IP address are    ?

(A)  3.  

(B)  4.   

(C)  5.  

(D)  9. 

Ans: C   The total number of class of IP addresses are 5.  

Q.6 Parent class of all Java classes is ?   

(A)  java.lang.system  

(B)  java.lang.object   

(C)  java.lang.class  

(D)  java.lang.reflect.object  

Ans: B   Parent class of all Java classes is java.lang.object.  

Q.7 Exceptions of type error inn JAVA are handled by    ?

(A)  User program  

(B)  Java run time environment   

(C)  Operating system kerne  

(D)  Interrupt  

Ans: B   Exceptions of type error in JAVA are handled by JAVA run time environment.  

Q.8 Error detecting method that can detect more errors without increasing additional information in each packet is    ?

(A)  checksum  

(B)  even parity mechanism   

(C)  CRC  

(D)  odd parity mechanism.  

Ans: C Error detecting method that can detect more errors without increasing additional information in each packet is CRC.  

Q.9 A Network uses a star topology if  ?

(A) Computers are arranged in a closed loop. 

(B) All computers attach to a central point. 

(C) All computers attach to a single long cable. 

(D) Computers attach to multiple hierarchical cables.  

Ans: B   A Network uses a star  topology if all computers attach to a central point.

Q.10 MTU is specified by    ?

(A)  IP Datagram size  

(B)  Hardware technology   

(C)  TCP Segment size  

(D)  None of the above.  

Ans: B   MTU is specified by hardware technology.